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"Access Denied" error when a user tries to perform actions on a team site mailbox in Office 365

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Problem

When a user who has site owner permissions tries to perform actions on a team site mailbox (such as create a new inbox rule) through Outlook Web App in Office 365, he or she receives an error message that resembles the following:�
403
Sorry! Access denied :(
You don't have permission to open this page. If you're a new user or were recently assigned credentials, please wait 15 minutes and try again.

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Cause

A site owner can access the team site mailbox but cannot use any Exchange admin center functionality on that mailbox.

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Solution

Assign the user Full Access permissions to the team site mailbox. To do this, follow these steps:
  1. Connect to Exchange Online by using remote PowerShell. For more info, see Connect to Exchange Online by using Remote PowerShell.
  2. Identify the site mailbox to which you want to add permissions. To do this, run the following command: 
    Get-SiteMailbox �BypassOwnerCheck
  3. Run the following command to grant the user Full Access permission: 
    Add-MailboxPermission -Identity <SiteMailbox> -User <SiteOwnerAlias> -AccessRights FullAccess -InheritanceType All -AutoMapping $true
    For example: 
    Add-MailboxPermission -Identity SMO-Test@contoso.onmicrosoft.com -User Test@contoso.onmicrosoft.com -AccessRights FullAccess -InheritanceType All -AutoMapping $true

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More information

For more info about team site mailboxes, see Let users create their own team sites. For more info about the Office 365 permission model,�see�Permissions in Office 365.

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Still need help? Go to the Office 365 Community website.

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Keywords: KB2935317, o365022013, o365m, o365p, o365e, o365a, o365

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Article Info
Article ID : 2935317
Revision : 3
Created on : 7/9/2014
Published on : 7/9/2014
Exists online : False
Views : 375